p.s. Kindly look at the image below. When I've looked at it (in a darkened room) for more than a minute or two, I have found that simultaneous with my body relaxing, my mind starts to wander in a fascinating way. I recommend it. It's wonderful, easy meditation, and you don't need any dangerous drugs. Seemingly silly exercises like this one have made my "comeback" much quicker. You can click on the image to see it at its full size, which is considerably larger.

The fascinating shape is actually an impossible recursive pattern wrapped around a doughnut-like shape called a toroid. Really. Look it up if you like.